ST STM32F40 Series User Manual

Digital-to-analog converter (DAC) RM0090
329/1422 Doc ID 018909 Rev 4
12.5.15 DAC register map
Tabl e 5 9 summarizes the DAC registers.
Refer to Table 2 on page 52 for the register boundary addresses.
Bits 31:30 Reserved, must be kept at reset value.
Bit 29 DMAUDR2: DAC channel2 DMA underrun flag
This bit is set by hardware and cleared by software (by writing it to 1).
0: No DMA underrun error condition occurred for DAC channel2
1: DMA underrun error condition occurred for DAC channel2 (the currently selected trigger is
driving DAC channel2 conversion at a frequency higher than the DMA service capability rate)
Bits 28:14 Reserved, must be kept at reset value.
Bit 13 DMAUDR1: DAC channel1 DMA underrun flag
This bit is set by hardware and cleared by software (by writing it to 1).
0: No DMA underrun error condition occurred for DAC channel1
1: DMA underrun error condition occurred for DAC channel1 (the currently selected trigger is
driving DAC channel1 conversion at a frequency higher than the DMA service capability rate)
Bits 12:0 Reserved, must be kept at reset value.
Table 59. DAC register map
Address
offset
Register
name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 0
0x00 DAC_CR
Reserved
DMAUDRIE2
DMAEN2
MAMP2[3:0]
WAVE
2[2:0]
TSEL2[2:0]
TEN2
BOFF2
EN2
Reserved
DMAUDRIE1
DMAEN1
MAMP1[3:0]
WAVE
1[2:0]
TSEL1[2:0]
TEN1
BOFF1
EN1
0x04
DAC_SWT
RIGR
Reserved
SWTRIG2 SWTRIG1
0x08
DAC_DHR1
2R1
Reserved DACC1DHR[11:0]
0x0C
DAC_DHR1
2L1
Reserved DACC1DHR[11:0] Reserved
0x10
DAC_DHR8
R1
Reserved DACC1DHR[7:0]
0x14
DAC_DHR1
2R2
Reserved DACC2DHR[11:0]
0x18
DAC_DHR1
2L2
Reserved DACC2DHR[11:0] Reserved
0x1C
DAC_DHR8
R2
Reserved DACC2DHR[7:0]
0x20
DAC_DHR1
2RD
Reserved DACC2DHR[11:0] Reserved DACC1DHR[11:0]
0x24
DAC_DHR1
2LD
DACC2DHR[11:0]
Reserved DACC1DHR[11:0] Reserved
0x28
DAC_DHR8
RD
Reserved DACC2DHR[7:0] DACC1DHR[7:0]
0x2C DAC_DOR1
Reserved DACC1DOR[11:0]
0x30 DAC_DOR2
Reserved DACC2DOR[11:0]
0x34 DAC_SR
Reserved
DMAUDR2
Reserved
DMAUDR1
Reserved

ST STM32F40 Series Specifications

General

Brand	ST
Model	STM32F40 Series
Category	Microcontrollers
Language	English